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 王天杨
提交两个项目文件
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import { kindOf } from './utils/kindOf'
function bindActionCreator(actionCreator, dispatch) {
return function () {
return dispatch(actionCreator.apply(this, arguments))
}
}
/**
* Turns an object whose values are action creators, into an object with the
* same keys, but with every function wrapped into a `dispatch` call so they
* may be invoked directly. This is just a convenience method, as you can call
* `store.dispatch(MyActionCreators.doSomething())` yourself just fine.
*
* For convenience, you can also pass an action creator as the first argument,
* and get a dispatch wrapped function in return.
*
* @param {Function|Object} actionCreators An object whose values are action
* creator functions. One handy way to obtain it is to use ES6 `import * as`
* syntax. You may also pass a single function.
*
* @param {Function} dispatch The `dispatch` function available on your Redux
* store.
*
* @returns {Function|Object} The object mimicking the original object, but with
* every action creator wrapped into the `dispatch` call. If you passed a
* function as `actionCreators`, the return value will also be a single
* function.
*/
export default function bindActionCreators(actionCreators, dispatch) {
if (typeof actionCreators === 'function') {
return bindActionCreator(actionCreators, dispatch)
}
if (typeof actionCreators !== 'object' || actionCreators === null) {
throw new Error(
`bindActionCreators expected an object or a function, but instead received: '${kindOf(
actionCreators
)}'. ` +
`Did you write "import ActionCreators from" instead of "import * as ActionCreators from"?`
)
}
const boundActionCreators = {}
for (const key in actionCreators) {
const actionCreator = actionCreators[key]
if (typeof actionCreator === 'function') {
boundActionCreators[key] = bindActionCreator(actionCreator, dispatch)
}
}
return boundActionCreators
}
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